Results 101 to 110 of about 4,444 (222)

Policy implications of warming permafrost [PDF]

Permafrost is perennially frozen ground occurring in about 24% of the exposed land surface in the Northern Hemisphere. The distribution of permafrost is controlled by air temperature and, to a lesser extent, by snow depth, vegetation, orientation to ...

core  

A lake-centric geospatial database to guide research and inform management decisions in an Arctic watershed in northern Alaska experiencing climate and land-use changes [PDF]

, 2017
Lakes are dominant and diverse landscape features in the Arctic, but conventional land cover classification schemes typically map them as a single uniform class.
Arp, Christopher D., Beaver, John, Daanen, Ronald, Fritz, Stacey, Grosse, Guido, Gädeke, Anne, Jones, Benjamin M., Liljedahl, Anna, Nigro, Debora, Nitze, Ingmar, Torvinen, Eric, Whitman, Matthew S., Zuck, Callie   +12 more
core   +1 more source

Retrogressive Thaw Slumps Produce a Changing Disturbance Regime for Arctic Stream Invertebrates

Global Change Biology, Volume 32, Issue 3, March 2026.
Climate change is causing permafrost to thaw, resulting in the formation of large craters in the ground called thaw slumps, which deposit sediments and nutrients into rivers and continually impact stream ecosystems over time. We returned to slump impacted streams 10 years after an initial sample period and found that slumps permanently change streams ...
Maria Dolan, Jordan Musetta‐Lambert, Krista S. Chin, Steven V. Kokelj, Suzanne E. Tank, Jennifer Lento, Michael Power, Joseph M. Culp   +7 more
wiley   +1 more source

Transitions in Arctic ecosystems: ecological implications of a changing hydrological regime [PDF]

, 2016
Numerous international scientific assessments and related articles have, during the last decade, described the observed and potential impacts of climate change as well as other related environmental stressors on Arctic ecosystems.
Culp, Joseph M., Jenkins, Alan, Johansson, Margareta, Mard, Johanna, Myers-Smith, Isla H., Prowse, Terry D., Vincent, Warwick F., Wookey, Philip A., Wrona, Frederick J.   +8 more
core   +2 more sources

Long‐Term Increases in Ca2+, Mg2+, and SO42− Concentrations in the Kolyma River (1980–2022) Due To Yedoma Degradation

Global Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract Permafrost degradation under a warming climate has altered hydrological and biogeochemical processes across the Arctic. Although increasing fluxes of weathering‐derived ions (e.g., Ca2+, Mg2+, and SO42−) have been reported in Arctic rivers, the underlying mechanisms and hotspots within basins remain poorly understood due to limited analysis of
Y. Tashiro, T. Hiyama, H. Kanamori, L. Lebedeva, H. Park, O. Makarieva, P. Nikitina, S. R. Fassnacht, A. Zemlianskova, O. Zhunusova, K. Suzuki   +10 more
wiley   +1 more source

Application of the Red Edge Water Index for Extracting Thermokarst Lakes and Detecting Drainage Events on the Qinghai–Tibet Plateau

Atmosphere
Thermokarst lakes play a crucial role in regulating hydrological, ecological, and biogeochemical processes in permafrost regions. However, due to the limited spatial resolution of earlier satellite imagery, small thermokarst lakes—highly sensitive to ...
Tiantian Li, Guanghao Zhou, Wenhui Liu, Hairui Liu, Jianqiang Zhang, Renjie He, Heming Yang   +6 more
doaj   +1 more source

Long-term perspectives on terrestrial and aquatic carbon cycling from palaeolimnology [PDF]

, 2015
Lakes are active processors and collectors of carbon (C) and thus recognized as quantitatively important within the terrestrial C cycle. Better integration of palaeolimnology (lake sediment core analyses) with limnological or modelling approaches has the
Anderson, N. John, Edwards, Mary E., Langdon, Peter G., McGowan, Suzanne, Turner, Simon, van Hardenbroek, Maarten, Vivienne, Vivienne J., Whiteford, Erika, Wiik, Emma   +8 more
core   +2 more sources

Methane Production Controls in Thermokarst Lake Sediments [PDF]

Goldschmidt2021 abstracts, 2021
Andre Pellerin, Noam Lotem, Orit Sivan, Katey Walter-Anthony, Nicholas Hasson, Efrat Eliani Russak   +5 more
openaire   +1 more source

Temporal Behavior of Lake Size-Distribution in a Thawing Permafrost Landscape in Northwestern Siberia

Remote Sensing, 2014
Arctic warming alters regional hydrological systems, as permafrost thaw increases active layer thickness and in turn alters the pathways of water flow through the landscape.
Johanna Mård Karlsson, Steve W. Lyon, Georgia Destouni   +2 more
doaj   +1 more source

Susceptibility Modeling and Potential Risk Analysis of Thermokarst Hazard in Qinghai–Tibet Plateau Permafrost Landscapes Using a New Interpretable Ensemble Learning Method

Atmosphere
Climate change is causing permafrost in the Qinghai–Tibet Plateau to degrade, triggering thermokarst hazards and impacting the environment. Despite their ecological importance, the distribution and risks of thermokarst lakes are not well understood due ...
Yuting Yang, Jizhou Wang, Xi Mao, Wenjuan Lu, Rui Wang, Hao Zheng   +5 more
doaj   +1 more source